arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1503.01912physics.optics
收藏

硅纳米光子与有机电光聚合物混合集成实现宽带节能光调制

Broadband energy-efficient optical modulation by hybrid integration of silicon nanophotonics and organic electro-optic polymer

Xingyu Zhang, Amir Hosseini, Harish Subbaraman, Jingdong Luo, Alex K. -Y Jen, Chi-jui Chung, Hai Yan, Zeyu Pan, Robert L. Nelson, Ray T. Chen

摘要:

硅有机混合集成器件具有新兴的应用,从高速光学互连到光子电磁场传感器。电光聚合物填充硅缝隙光子晶体波导(PCWs)结合了PCWs的慢光效应和电光聚合物的高极化率,有望实现高性能的光调制器。提出了一种基于电光聚合物填充硅缝隙PCW的宽带、低功耗、低色散、紧凑型光调制器。在背栅电压的辅助下,调制响应可达50 GHz,3dB带宽为15 GHz,在10 Gbit/s时的能量消耗为94.4fJ/bit。此外,晶格移位的PCW被用于将光学带宽提高到基于非频带工程PCW和环形谐振器的其他调制器的约10倍。

英文摘要:

Silicon-organic hybrid integrated devices have emerging applications ranging from high-speed optical interconnects to photonic electromagnetic-field sensors. Silicon slot photonic crystal waveguides (PCWs) filled with electro-optic (EO) polymers combine the slow-light effect in PCWs with the high polarizability of EO polymers, which promises the realization of high-performance optical modulators. In this paper, a broadband, power-efficient, low-dispersion, and compact optical modulator based on an EO polymer filled silicon slot PCW is presented. A small voltage-length product of Vπ*L=0.282Vmm is achieved, corresponding to an unprecedented record-high effective in-device EO coefficient (r33) of 1230pm/V. Assisted by a backside gate voltage, the modulation response up to 50GHz is observed, with a 3-dB bandwidth of 15GHz, and the estimated energy consumption is 94.4fJ/bit at 10Gbit/s. Furthermore, lattice-shifted PCWs are utilized to enhance the optical bandwidth by a factor of ~10X over other modulators based on non-band-engineered PCWs and ring-resonators.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑